Reza Mirshahi

Dr. Reza Mirshahi

orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 June 2019 in Journal of Current Ophthalmology
Verified
Journal Article
Open access
MMMehrdad Mohammadpour
Mehrdad Mohammadpour
ASAmirreza Shaabani
Amirreza Shaabani
ASAlireza Sahraian
Alireza Sahraian
BMBita Momenaei
Bita Momenaei
FTFereshteh Tayebi
Fereshteh Tayebi
RMReza Mirshahi
Reza Mirshahi
A comprehensive review in congenital cataract management can guide general ophthalmologists in managing such a difficult situation which remains a significant cause of preventable childhood blindness. This review will focus on surgical management, postoperative complications, and intraocular lens (IOL)-related controversies. Electrical records of PubMed, Medline, Google Scholar, and Web of Science from January 1980 to August 2017 were explored using a combination of keywords: "Congenital", "Pediatric", "Childhood", "Cataract", "Lens opacity", "Management", "Surgery", "Complication", "Visual rehabilitation", and "Lensectomy". A total number of 109 articles were selected for the review process. This review article suggests that lens opacity obscuring the red reflex in preverbal children and visual acuity of less than 20/40 is an absolute indication for lens aspiration. For significant lens opacity that leads to a considerable risk of amblyopia, cataract surgery is recommended at 6 weeks of age for unilateral cataract and between 6 and 8 weeks of age for bilateral cases. The recommended approach in operation is lens aspiration via vitrector and posterior capsulotomy and anterior vitrectomy in children younger than six years, and IOL implantation could be considered in patients older than one year. Most articles suggested hydrophobic foldable acrylic posterior chamber intraocular lens (PCIOL) for pediatrics because of lower postoperative inflammation. Regarding the continuous ocular growth and biometric changes in pediatric patients, under correction of IOL power based on the child's age is an acceptable approach. Considering the effects of early and late postoperative complications on the visual outcome, timely detection, and management are of a pivotal importance. In the end, the main parts of post-operation visual rehabilitation are a refractive correction, treatment of concomitant amblyopia, and bifocal correction for children in school age. The management of congenital cataracts stands to challenge for most surgeons because of visual development and ocular growth. Children undergoing cataract surgery must be followed lifelong for proper management of early and late postoperative complications. IOL implantation for infants less than 1 year is not recommended, and IOL insertion for children older than 2 years with sufficient capsular support is advised.

1 December 2017 in Journal of Current Ophthalmology
Verified
Journal Article
Open access
FGFariba Ghassemi
Fariba Ghassemi
RMReza Mirshahi
Reza Mirshahi
FBFatemeh Bazvand
Fatemeh Bazvand
KFKaveh Fadakar
Kaveh Fadakar
HFHoushang Faghihi
Houshang Faghihi
SSSiamak Sabour
Siamak Sabour
To provide normative data of foveal avascular zone (FAZ) and thickness. In this cross-sectional study both eyes of each normal subject were scanned with optical coherence tomography angiography (OCTA) for foveal superficial and deep avascular zone (FAZ) and central foveal thickness (CFT) and parafoveal thickness (PFT). Out of a total of 224 eyes of 112 volunteers with a mean age of 37.03 (12-67) years, the mean superficial FAZ area was 0.27 mm2, and deep FAZ area was 0.35 mm2 (P < 0.001), with no difference between both eyes. Females had a larger superficial (0.32 ± 0.11 mm2 versus 0.23 ± 0.09 mm2) and deep FAZ (0.40 ± 0.14 mm2 versus 0.31 ± 0.10 mm2) (P < 0.001) than males. By multivariate linear regression analysis, in normal eyes, superficial FAZ area varied significantly with the gender, CFT, and deep FAZ. Deep FAZ varied with the gender and CFT. The gender and CFT influence the size of normal superficial and deep FAZ of capillary network.

1 September 2016 in Journal of Current Ophthalmology
Verified
Journal Article
Open access
HHHesam Hashemian
Hesam Hashemian
RMReza Mirshahi
Reza Mirshahi
MKMehdi Khodaparast
Mehdi Khodaparast
MJMahmoud Jabbarvand
Mahmoud Jabbarvand
To investigate recent evidence in prophylaxis and management of post-cataract surgery endophthalmitis. We conducted a literature search using Pubmed database for post cataract surgery endophthalmitis, and relevant articles were selected from original English papers published since 2015. Forty-nine articles were published regarding post-cataract surgery endophthalmitis from January 2015 to February 2016. A low incidence of post-cataract surgery endophthalmitis has been reported. A growing number of articles are focusing on preventing endophthalmitis using intracameral antibiotics. Based on the current evidence, intracameral antibiotics seems to be effective in preventing endophthalmitis after cataract surgery.

19 January 2021 in Eye
Verified
Journal Article
Closed access
PDF file
MSMohammad Soleimani
Mohammad Soleimani
STSeyyed Ali Tabatabaei
Seyyed Ali Tabatabaei
AMAhmad Masoumi
Ahmad Masoumi
RMReza Mirshahi
Reza Mirshahi
HGHossein Ghahvechian
Hossein Ghahvechian
SMS. Saeed Mohammadi
S. Saeed Mohammadi

1 January 2018 in Clinical Ophthalmology
Verified
Journal Article
Open access
PDF file
FGFariba Ghassemi
Fariba Ghassemi
RMReza Mirshahi
Reza Mirshahi
KFKaveh Fadakar
Kaveh Fadakar
SSSiamak Sabour
Siamak Sabour
Optical coherence tomography angiography in choroidal melanoma and nevus Fariba Ghassemi,1,2 Reza Mirshahi,1,2 Kaveh Fadakar,1,2 Siamak Sabour3 1Retina & Vitreous Service, 2Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, 3Safety Promotion and Injury Prevention Research Centre, Department of Clinical Epidemiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran Synopsis: In optical coherence tomography angiography, the choroidal vascular flow rate in choroidal melanoma is significantly lower than that in choroidal nevus.Objective: The objective of this study was to describe the choriocapillaris and retinal features imaged by optical coherence tomography angiography (OCTA) in eyes with choroidal nevus from small malignant choroidal melanoma.Methods: In this retrospective, noninvasive, observational study, 11 patients diagnosed with small choroidal mass (five with choroidal nevus and six with malignant melanoma) who underwent dilated fundus examination, ocular ultrasonography and OCTA images were compared.Results: In choroidal nevus of all patients, OCTA demonstrated a hyporeflective mass with no significant deformity of choroidal vasculature and an intact retinal pigment epithelium (RPE)–Bruch’s membrane complex. The flow void mass was surrounded by an intense vascular rim named as surface microvasculature (SMV) that had an approximately similar flow rate median of 63.68 mm2 (60.42–67.62 mm2), comparable with the median of the contralateral normal eye of 61.77 mm2 (60.42–64.53 mm2; P>0.09) for nevi. OCTA showed an obscured Bruch’s membrane–RPE–Bruch’s membrane complex and outer retinal layer in choroidal melanomas. Choriocapillaris flow rate over the melanomas was 55.73% (41.93%–60.82%), and the corresponding normal areas had a flow area of 62.75% (61.99%–63.10%; P=0.01). A flow rate difference between choroidal melanoma and nevus was significant (P=0.006). Axial and peripheral feeding vessels were more dilated and tortuous compared with benign nevi.Conclusion: Decreased flow rate of SMV of choroidal melanoma cases compared with nevi was a significant finding. Detection of characteristic vascular features of choroidal melanoma by OCTA could make OCTA an assuring diagnostic modality to differentiate malignant lesions. Keywords: melanoma, choroidal nevus, OCT, OCTA, uveal melanoma

1 August 2017 in Journal of Glaucoma
Verified
Journal Article
Closed access
PDF file
FBFatemeh Bazvand
Fatemeh Bazvand
RMReza Mirshahi
Reza Mirshahi
KFKaveh Fadakar
Kaveh Fadakar
HFHoushangh Faghihi
Houshangh Faghihi
SSSiamak Sabour
Siamak Sabour
FGFariba Ghassemi
Fariba Ghassemi
Purpose: The purpose of this study was to evaluate the vascular density (VD) and the flow area on optic nerve head (ONH) and peripapillary area, and the impact of age and sex using optical coherence tomography angiography (OCTA) in healthy human subjects. Methods: Both eyes of each volunteer were scanned by an RTVue XR Avanti; Optovue with OCTA using the split-spectrum amplitude-decorrelation angiography algorithm technique. Masked graders evaluated enface angiodisc OCTA data. The flow area of ONH and the VD were automatically calculated. Results: A total of 79 eyes of patients with a mean age of 37.03±11.27 were examined. The total ONH (papillary and peripapillary) area VD was 56.03%±4.55%. The flow area of the ONH was 1.74±0.10 mm2/1.34 mm2. The temporal and inferotemporal peripapillary VD was different between male and female patients. Increasing age causes some changes in the flow area of the ONH and the papillary VD from the third to the fourth decade (analysis of variance test; P<0.05). Conclusions: A normal quantitative database of the flow area and VD of the papillary and peripapillary area, obtained by RTVue XR with OCT angiography technique, is presented here.